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Wires, cables, wifi
Internet etc
Question | Answer |
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1. What is the Internet? | A physical system that was made to move information. |
2. What kind of information/data does the internet send? | Binary information is sent over the internet. |
3. Define the term BITS? | The smallest piece of information sent through the internet. It is made up of binary code, which is 1’s and 0’s. |
4. Give one example of a BIT. | An example of a BIT is 1. |
5. What is 8bits strung together called? | 8 bits strung together is a byte. |
6. How many megabytes is a typical MP3 file? | A typical MP3 file is 3-4 megabytes. |
What are the three physical media used to send bits across the internet? | Electricity (copper cables), light (fiber optic cables) and radio waves (wireless) are all types of physical media. |
8. What is Bandwidth? | Bandwidth is the maximum transmission capacity of a device. |
9. What is Bitrate? | Bit rate is the number of bits that we can send over a given period of time. |
10. What is ethernet? | Ethernet cables are made up of wires, which are made up of copper. |
11. What is a faster physical medium than copper wire? Explain why | Fiber optic cables can be a faster physical medium that copper wire since it uses light to send this information. This is because it is faster and has less signal loss. |
12. How is information sent wirelessly? | Wireless information can be made through radio waves, another type of physical media. Radio waves can travel without a wire so therefore wireless. |